linux-kernel - Re: [PATCH 2/2] UBI: do not select KALLSYMS

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Message-Id: <20110330154133.60d8f57e.randy.dunlap@oracle.com>
Date:	Wed, 30 Mar 2011 15:41:33 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Artem Bityutskiy <dedekind1@...il.com>
Cc:	MTD list <linux-mtd@...ts.infradead.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] UBI: do not select KALLSYMS_ALL

On Wed, 30 Mar 2011 11:40:16 +0300 Artem Bityutskiy wrote:

> From: Artem Bityutskiy <Artem.Bityutskiy@...ia.com>
> 
> All UBI needs is to make sure we stacktraces when UBI debugging
> is enabled. It is enough to select KALLSYMS for this, KALLSYMS_ALL
> is not necessary.
> 
> And the current Kconfig line we have:
> 
> select KALLSYMS_ALL if KALLSYMS && DEBUG_KERNEL
> 
> is just too complex to be sane and right. But this "if" part there
> is needed to prevent "unmet direct dependency" warnings, because
> KALLSYMS_ALL depends on KALLSYMS and DEBUG_KERNEL, so we cannot
> just select KALLSYMS_ALL.
> 
> Anyway, this feels messy, and we do not seem to really need KALLSYMS_ALL,
> so select KALLSYMS instead.
> 
> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@...ia.com>
> ---
>  drivers/mtd/ubi/Kconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig
> index 6abeb4f..4dcc752 100644
> --- a/drivers/mtd/ubi/Kconfig
> +++ b/drivers/mtd/ubi/Kconfig
> @@ -56,7 +56,7 @@ config MTD_UBI_DEBUG
>  	bool "UBI debugging"
>  	depends on SYSFS
>  	select DEBUG_FS
> -	select KALLSYMS_ALL if KALLSYMS && DEBUG_KERNEL
> +	select KALLSYMS
>  	help
>  	  This option enables UBI debugging.
>  
> -- 

Acked-by: Randy Dunlap <randy.dunlap@...cle.com>

Thanks.

---
~Randy
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